Home / 13,165.68-19,749.60-4,400.80

Finding the Fourth Proportional to 13,165.68, 19,749.60 and 4,400.80

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Solution

The fourth proportional to 13,165.68, 19,749.60 and 4,400.80 is: 6,601.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165.68 : 19,749.60 = 4,400.80 : x
  2. Step 2: Convert to fraction form
    13,165.68/19,749.60 = 4,400.80/x
  3. Step 3: Cross multiply
    13,165.68x = 19,749.60 × 4,400.80
  4. Step 4: Simplify right side
    13,165.68x = 86,914,039.68
  5. Step 5: Solve for x
    x = 86,914,039.68/13,165.68
  6. Step 6: Final answer
    x = 6,601.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.